Repair stand for engines transmissions, and the like



Nov. 6, 1928. E. o. ADKINS REPAIR STAND FOR ENGINES, TRANSMISSIONS, ANDTHE LIKE Filed March 10, 1926 5 Sheets-Sheet 1 lllilllll nmib '1...

awn tot 51.. 5/1 0. ADKINS Nov. 6, 1928. 1,690,660

E, 0. ADKINS REPAIR STAND FOR ENGINES, TRANSMISSIONS, AND-THE LIKE FiledMarch 10, 1926 5 Sheets-Sheet 2 I I wumt'om A 0. A ain/v.5

Nov. 6, 1928.

E. o. ADKINS REPAIR STAND FOR ENGINES, TRANSMISSIONS, AND THE'LIKE 5Sheets-Sheet Filed March 10, 1926 m a A a A m E a am w w m a Will E5555NOV. 6, 1928. 1,690,660

E. O. ADKINS REPAIR STAND FOR ENGINES, TRANSMISSIONS, AND THE LIKE FiledMarch 10, 1926 5 Sheets-Sheet 4 Patented Nov. 6, 1928.

UNITED STATES,

PATENT OFFICE,

ELIBA O. ADKINS, OF HUNTINGTON, WEST VIRGI NZ IA, ASSIGrNOZR, OF ONEHAL]? TO THE HUNTINGTON AUTO SUPPLY COMPANY, 01!

PORATION OF WEST VIRGINIA.

HUNTINGTON, wns'r vmemm, A con- REPAIR STAND Fen ENGINES; TRANSMISSIONS,D HE LIKE.

, Application filed March 10, 1926. Serial No. 93,814. i

' parts thereof without difficulty on the part of the operator.

Another object of the invention is to provide novel means forconstructing the cradle whereby the engine can be firmly held thereinagainst accidental displacement, the cradle being adjustable for holdingvarious sizes and kinds of apparatus,

A further object of the invention is to provide novel means for rotatingthe cradle in the stand and for locking the cradle in anydesiredadjusted position.

A further object of the invention is to provide a novel repair stand forengines including means for clamping the engine in place and novel meansfor contin uouslv rotating the crank shaft of the engine at dii lerentspeeds while the same is being held in place, whereby new bearingsfitted on the shaft can be worn in prior to the fitting of the engine inthe vehicle. A further object of the invention is to provide a novelmeans for connecting the transmission shaft to the fly wheel of theengine bein rebuilt, whereby to permit difierent sizes and types ofengines to be acted upon irrespective of the position of the cradle onthe stand. A further object of the invention is to pro vide a novelmeans for incorporating a clutch on the stand, whereby the drive meansfor the transmissioncan be disconnected therefrom at any desired time.

A still further object of the invention is to provide a device of theabove character which will be easily operated and which is of anexceptionally strong and durable character and occupy a minimum amountof space in a repair shop. 7

With these and other objects in view, the in vention consists in thenovel construction, arrangement and formation of parts as will behereinafter more specifically described, claimed, and illustrated in theaccompanying drawings, in which drawings:

Figure 1 is a side elevation of the improved device, i t i Figure 2 is atop plan view of the same, Figure 3 is a'longitudinal section throughthe device taken on the line 33 Of Figure 2, Figure 4 is a transversesection taken on the line 4+4 of Figure 1 looking in the direc: tion ofthe arrows illustrating the novel means for holding the cradle in anadjusted positlon against swinging movement, I

Figure 5 is a transverse section through the devicetaken on the line 5-5of Figure a looking inthe direction of the arrows illus trating theformation of the cradle and'the driving means forthe transmission,

' Figure 6 is a transverse section taken on the line 66o t Figure 3looking in the direction of the arrows illustrating the formation of thesupporting frame and the means for operating the clutch for connectingthe transmission with the driving means, t

Figure 7 is a transverse sectiontaken on the line '('7 of Figure 3looking in the direc -r tion a of v the arrows illustrating the novelmeans employed for adjusting the cradle clamping bars, I I r Figure 8 isafragmentary sideelevation'of thedevice showing the opposite side fromthat. illustrated in Figure 1, v

Figure 9 is a horizontal section taken on the line 99 of Figure 8looking in the direction ofthe arrows showing the cradle inbot-v tomplan,

v Figure 10 a detail perspective view of the means utilized. forconnecting'the universal drive shaft of the trasmission with. the flywheel of the engine, I i r L Referring to the drawings in detail, Wherein similar reference characters designate corresponding parts throughoutthe several vi ewsthe letter A generally indicates the improveddevice,wh ich comprises a novel supporting frame or stand B,a cradle ofnovel construction C for receiving the work, an adjusting means D forthe cradle, a prime mover E for operating the crank shaft of gine h ld yhe ra e a tr nsm ssion F. for varying the speed of the prime over E; aclutch G for connecting the drive engine or prime mover E with thetransmission F, and

the no velrneans H for operatively connecting the transmission with thecrank shaft or the engine being operated upon.

lfhe novel supportingframe or stand B comprises longitudinally extendingbase bars 15 which can be formed ofangle iron and hich have boltedorotherwise secured thereto upright supporting legs 16, 17 18 and 19.

The legs lfi and 17 are arranged in transverse alineinent and aredisposed inward oi the rear ends of the base bars 15. TllE legs 18 and19 are also arranged intransverse alinenent and are secured to theextreine'forward ends of the bars. These legs mentioned 'i'orrn meansfor supporting th cradle and the operating means 1) therefor, as will behereinafter inore fully described. These logs can be braced in anypreferred. way, such as by transverse brace bars 20. The upper endsofthe bars 16 and 1'? have boltedkn: otherwise secured thereto. a.transoutwardly asat 27 and that the upper tern)"- yerse siipportingtrain-e bar-21, while. thelegs 1S and 19h Ire secured to thcirupper endsa similar transverse frame barQZ. These bars can be also torniedof angleiron if desired. The base bars beyond'the legs 16 and 17 also haveboltedtl-iereto pairs oftransversely alined legs 23 and 2st, which asshown are also constructed of ange iron. The pairs of legs 23 and 2 sare braced by transverse straps 25 and canbe further braced by diagona-lstraps 26 certain ot which are bolted to the legs 16 and 17. The pairsof legs 23 and 2% extend above the legs 16 and 17 and term means forsupporting respectively the prime mover E, theclutch G andthetransmissionF, aswill be hereinafter fully described. It is to benotedhowever. that the upper ends of the pair ofle'gs 24 have theirupper, ends bowed nals of the pair of legs 23 lave bolt/ed thereto abracket 28,011 which the prime mover E is in turn secured. This bracketextends rearwardly of the upper ends of the pair of legs and is bracedby suitable supporting arms 29 carried by or secured to the base bars15. The novel cradle G comprises a parrot transversely,extending spaced.parallel end bars 30 and 31 which are preferably con'-' structed ofangle iron, with their upper flanges arranged in a horizontal plane, andprovided with longitudinally extending slots 3:2. The vertical flangesof the bars and 31rat-"their.transverse centers hare secured formed otangle iron. The horizontal flanges of the cradle sidebars 36 arearrangedunder the horizontal flanges or" the end bars 30 and 31 and the ones ofthe sine bars 36 have bolted or otherwise secured thereto guides 37 foreng a -ins the up aer faces of the end bars 30 2111C I D K i sidebars36. lhes'e bolts. 38 have threaded thereon tightening nuts 39 providedwith suitable operating handles et-O which may be pivotally connectedthereto. "In order to porwit the expeditious adjus 'ng of t e side barstransversely eI-Ztendin adiiustingshafts ll h and areprovided. 'iheseshafts 11 an 42 extend through su table s s tgformed 1n the yertnialflanges of the nd side barsv 36 and the opposite ends of theseshatts areprorided with right and left handthreads'lsd and 44- respectively onwhich ar ethreaded tralvelling nuts 4-5.

These nuts have their inner faces of substantially a SGDIl SPlIGllCZIlshape I I for rocking engagement w th the outer faces 01 the side bars36, and each nut carries a hracheu for engaging the said side bars andthese'brackets 46 are in the nature of hooks engaging under The shafts41 and t2 can be moved toward and away from one another or. to the slots43 which extend longitudinally of the bars. The outer ends ofthe shaftslland 12 have pivotally connected thereto suitable inanipu latinghandles 4%? so as to permit the rotation of the shafts and the desiredmovement or the nut toward a d away from one an other. Owing to thearrangement of theadjusting shatt'sfano thesi de bars 36 the side barscan be adjusted at ditlerent angles relative toone another to conformsomewhat to the shape of the apparatus being he; d thereby. The innerfaces of the sidebars EEG-inward of theslits 4:3' have secured theretoclamping blocks 4:8 which can, it desired he made oi wood. "he blocks 48can be of any desired shape best suited for the particular purposeintended. o I

liihen an engine isclaniped in the cradle the same can be rcadilyniovedto varying p0:

' ns by simply turning 'tlltiCl't-Kllt) C, so

to alow all parts of the engine to be readily operate-d upon. I Thisadjusting means .l) eonuarisesa rel c ively large spur gear wheel. 50which is hey-d or otherwise securedto the stub shattifi and this gear 50PQQSllQS Wltll a drive pinion 51 keyed or otherwise secured to tion tothe stub shat; a t one side thereof. The

counter shatt 52 1S rotatably Iii-Gillltfitllll a suitable hearing carred by the end frame a counter shaft a2 arranged in parallel relabar 22and a: portion 0 tie said countershatt WlllCll extends beyond the framebar 22 1s oi the said side bars.

a polygonal hape in cross section for a purpose, which will. now. bedescribed. The polygonal end of the stub shaft 52 is adapted' t-oreceive an operating crank 54 whereby upon turning movement of the crankrotary move ment will be imparted to the cradle. The cradle can be heldin adjusted;positionby the use of a suitable latch lever which pivotallysecuredat one end, asat 56 to the frame bar22. Thislatch lever carriesdepending lugs 53" for engaging the polygonal portion of the shaft 52and it is obviousthat when. the latch lever isthrown downward rotarymovement of this shaft will be prevented.

The prime mover E utilized for turning the crank shaft of an internalcombustion engine held by the cradle,- When it isdesired to fit newbearings on-tlie crank shaftcan be of any dc" ed type. As shown thisprime iover co of an electric motor of the desired horse power, which isbolted directly to the bracket 'Acontrol box 58 can be mounted at oneside of the bracket 28 for the )iime mover E for controlling the {lowoi: current to the motor. The prime mover E includes the armatureshaftfii) having a drive pinion 6O keyedor otherwise secured thereto.This drive pinion 6O meshes With a relatively large spur gear heel (51vvlr' ch key-ed to stub shaft 62 rotatably Ca ed by abearing 63st thelongitudinalaxis of the frame or stand 13. This bearing 63 is bolted tothe bracket as ings. i

In order to vary the speed of rotationoi the crank shaft of the enginebeingacted upon the transmission F is provided This transmission 5 is ofany desired conventional construction and is provided with the usuallever 6 for bringing about the operation of the speed in the transssion. The transmissmn F has connected the eto suitable brackets, arms(35 which are bolted or OtllGilWiEfQ sc cured to the bowed ends 27 ofthepair of lOgS2 l. I

In order to connectthe transmission F with the prime mover E the clutchG is provided. This clutch G embodies a sliding clutch disk 66 featheredonthe transn'lission shaftGT. This disk carried by a suitable hub 68which is engaged by a spring 69 coiled about the lri 3111' 'on shaft andthis spring normally urges toe disk 66 into engagement with a clutchface 70 formed in the spur gear 61. A yoke 71 fits Within an annulargroove formed in the hub 68 and this yoke is carried by a transverselyextending operating shaft rockably supported by the upper ends of thebowed arms 27 of the legs 24-. A suitable handle or crank 73 is providedfor rocking the said shaft 7 2 and for consequently operating theclutch.

The speed shaft of the transmission F carries the novel means H forpermitting the shown in Figure 3 of thedravvor laterally extendingsupporting connectionof the transmission F with 1 the crank shaft of theengine being acted on and this novel means H comprises a sleeve 75 ofpolygonal shape: in "cross section which slidablyrcceives a shaftsection 76 at the forward end thereof. The rear end of the sleeveslidably receivesa shaft section 77 and this shaft section 77reconnected bye. universal joint 78 with the speed. shaft of thetransmission. Thechuit section 76 is connected by anniversal'joint witha shaft section 80, which is fn turn bolted or otherwise connected, asat8l to across head 82. i This cross head 82 isprovidml xvi hlongitudinally extending slots 83 for the reception of bolts 84,10 per.

mit the same to be connected to varying sizes of fly Wheels.ReterringtoFignre 3 of the drawings an internal combustion engineisshown clamped in placeby the cradle C, in suelr'a position as topcrmitthe bearings of the crank shaft to bereplaced. It can be seen,that owing to the construction of the connectionl l that irrespective ofthe distance of theengine'from the transmission or the position thereofone side or the other of the longitudinal axis of the stand or frame B,that the crank shaft can be readily connected to andoperated from thetransmission.

In the use of the device, the cngineblock or the like to be repaired ortested, is dis posed Within the cradle in the mannerillustrated inFigure of the drawings, in broken lines, and between the clamping blocks48 of the sidebars '36, and thethreaded shafts 4i and 42 are thenrotatably adjusted so as to efi ect' a firm clamping engagement ofth'eblocks 48 againsttheoppositesides of the engine block or the like; Whennew bearings are beingfitted in an engine the cradleis turned so as toexpose thecrank shaft, which Will allow the'bearings to be readilyremoved and new bearings placed in position. After the bearings havebeen replaced it is merely necessary to connect the head 82 with the flyW'llQQl of the engine and to setthe motor E into operation. The clutch Gis now 0perated and the transmission is moved into lowJgear. the crankshaft at a relatively low speed and as thebearings become Worn in thebearing bolts canbe taken up and the speed of the crank shaft advancedby the transmission. This allows the bearings to be thoroughly worn inbefore the engine is again associated Withthe chassis of the automobile.When new pistons or piston rings are placed in the engine the same canalso be Worn in by utilizing the motor E.

The device is capable of any number of uses. that Will readily suggestthemselves to skilled automobile mechanics and the device is alsoparticularly adapted for use in con nection with rebuildingtransmissions, differentials and the like.

If preferred, a lamp standard can be Thisavill allow the rotation ofdetachably associatedwith one ofthe supporting arms or brackets 65,50that light can be thrown directly on thework.

. Thebase bars of-theframe B can also be bolted to the floor of the workshop or other suitable support, if desired, so'as to preventrocking ofthe device when the same is in use. 1

It isalso' preferred toassociate tool pans with the device at differentconvenient points and as shown in Figure 3 of the drawings I haveconnected a tool pan 91 to the frame B directly below the transmissionF. This pan can be held in place by suitable brack- In some instances,especially in extra heavy work, itmay be advisable to provide extrasupports for the cradle C and for such a contingency swinging arms 93.and 94: are pivotally connected-as at 95 to one of the base bars 15.These arms can be swung to an upright raised position and have slidablyassociated therewith threaded shanks 96, which can be pushed through theslots 32 in the bars 30 and 31 of the cradle. Suitable clamping nuts canthen be threaded upon the shanks. r

i Changes in details may be made without departin'gfrom thespiritorscope of this invention,.but:, j

That I claim. as new is:

l. A device for repairing and rebuilding ,machinery comprisingafsupportingframe,

a cradle mountedin said frame including end bars and longitudinallyextending clamping porting frame, and means for varying the angularposition of the cradle with respect to the frame.

2. A device for repairing and rebuilding machinery comprising asupporting frame, a cradle mountedin said frame including a pair ofspaced. longitudinally extending end bars having slots extendinglongitudinally thereof, longitudinally extending side bars extendingbetween the end bars, means carrled by said side bars for clampingengagement with theopposite sides of the Work,

guides carried by the side bars engaging'the end bars, means carried bythe side bars and extending through the slots in the end bars forclamping the side bars in'positions of adjustment on said end bars, theside bars being provided with longitudinally extend ing slots, adjustingrods extending through ment 'of the side bars through the movement ofthe nuts, meansrotatably connecting the cradle with the frame, and meansfor varying the angle-of the cradle. I

3. A device of the character. describedcoinprising a supporting frame,end bars mounted for rocking movement in the frame and each providedwith a pair of slots, longitudinally extending work-clamping barsslidably mounted'on the endbars, bolts carried' by the longitudinal'barsand-mounted for adjustable clamping engagement in the slots of saidendbars, a transversely arranged threaded shaft operatively associated withthe longitudinal bars for moving the same toward and away from eachother into and out of clamping engagement with the work disblocksmounted upon the longitudinal bars for engagement with the work. 1

4. A device of the classdescribed comprising a supporting frame, endbars mounted for rocking adjustment within the frame and eachprovidedwith a pair of slots, longi tudinally extending work-clamping bars slid-.posed between the same, and work-engaging ably mounted at their endsupon the end bars,

clamping bolts carried by the longitudinal bars and adjustable in theslots of said end bars-toclamp the longitudinal bars after adjustmentthereof, athreaded shaft extending between thework-clamp'ing bars and atits ends through said bars, nuts mounted upon the shaft and bearingagainst the said bars, and means for rotating said shaft whereby toeffect feeding of the nuts and clampingadjustment of the saidwork-clamping bars. s

In testimony whereof I affix my signature.

.ELBA o. ADKINS.

